What is a pound per square inch?
PSI measures pressure as pounds-force applied per square inch and is familiar from tire and equipment gauges.
1 psi = 6.8947572932 kilopascals
Pressure unit
Pound per Square Inch
psiPSI measures pressure as pounds-force applied per square inch and is familiar from tire and equipment gauges.
History
PSI developed with engineering systems based on pounds-force and inches and remains widely used in automotive and industrial contexts.
Common uses
- Tire pressure
- Air compressors
- Hydraulics
- Water systems